Swinging plow



Patented st. 11, 1927.

UNITED STATES arr BINGHAM '1. WILSON, 0] LOS ANGELES, GALIFORNIA, ASSIGNOR T0 WILSON FAR-M I TOOL CORPORATION, A CORPORATION OF NEYAIDA.

swmeme new;

My invention relates to agricultural im plements and is more particularly an improved furrowing plow. such as employed .fonforming' furrows between the rows of trees in an orchard, in which to run water for irrigation purposes.

The general forrn of furrowing plow consists ot a vehicle which may be rawn by arm animals, or tractor, having a number. of furrowing plow blades attached at the back thereof which form furrows between the trees when the vehicle is drawn along a between the separate rows. Although a device of this nature may be operated with considerable saving of time and labor as compared to the forming of furrows by rnanual labor or by the use of single furrow plows, a disadvantage still exists which consists of the inability to form furrows in the spaces between the consecutive trees of each row.

The failure to form furrows between the rows, as before noted, results in an uneven distribution of irrigation water and the leaving of dry spots between the trees.

' It is an ob ct of my invention to provide a furrowing plow having a furrowing blade so mounted thereupon that it may be swung into the spaces existing between the trees of an orchard thus forming a furrow which will distribute water to these spots which are ordinarily deprived of proper irrigation.

It is a further object of the invention to provide a device of this character in whichthe-movable furrow blade is supported at the rear end of an arm having its forward end pivoted to the forward end of the vehicle,- and having a simple means for swingingthp arm away from the vehicle so as to accomplish the guiding of the movable plow blade in between the trees of the orchard.

The especial advantages of my invention, and further objects thereof, will be mHdc evident hereinafter.

Referring to the drawing which is for il lustrative purposes only:

Fig. l is a diagrammatic view the utility of my invention.

Fig. 2 is a plan view of a swinging plow embodying the features of my invention.

Fig. 3 is an enlarged section showing the means I employ for swinging the arm away from the vehicle so as to accomplish the forming of aiurrow between the trees.

Fig. i is an enlarged section showing the illustrating bars 6 and having a pair with a double the bar swinging end of the engagement arm and the manner in which the engagement roller is mounted thereupon.

As shown particularly in Fi 2, I employ a vehicle constructed of meta frame memof wheels 7 and 8 rotatably mounted upon an axle 9 which is rigidly secured by blocks 10 to the side members '11 of the vehicle 5. Truss rods 12 and diagonal members 13 are employed for re inforcing the frame 5. The vehicle may be adapted to be drawn either by tractor or by farm animals; theform shown in the drawing, being-of light construction is provided tree 15 so that it may be drawn by aninial power.

To the rear bar of the frame 5, a mum b'cr litufrowing plow blades 21 are secured, and to the forward end of the frame, a swingable arm is pivoted at 2c. The arm 25 extends to a point somewhat to the rear of thec'ross bar 20 and has swiveled to the rear end 27 thereof, by means of a fitting 28, an additional furrowing plowblade 25) whiclris intended for forming furrows between theconsecutive,trees in the orchard to be irrigated. As a means for swinging the arm' zfi outwardly, as indicated by the dotted lines 32, I mount concentrically upon the outside of paths :i-lformed upon the outer surface thereof which are adapted to be engaged by a roller 36 mounted at the outer end 3? of an arm 38 which is secured 'by means of a plate 3!), and so hinged at 40 thereto that it may swing through a vertical plane. The spiral paths ill advance outwardly from the base 4-2 ol the cone to theapcx 43 in one revolution of the wheel 8. In order that the arm 25 may he swung from the retracted position shown in Fig. 2 to the extended position shown at 32 during the travel of the vehicle a distance equal to the circumference of the wheel 8, there are a multiplicity of the spirals 34 lo'rmcd upon the cone 33, in order that the roller 36 will be immediately engaged and the arm 25 moved 'outwardl-y when the engagement arm 38 is allowed to drop from. the position shown in dotted lines in Fig. 3 to the position shown in full lines in that figure.

it only a single spiral were'provided, the engagement arm 38 might be dropped ata time immediately after the entering end of the wheel 8 a conical mei'nber fifii iwlnch has spiral the spiral had just passed the central point; which would mean that the vehicle would move forward a distance equal to a full rcvolution of the wheel 8, before starting the out ward movement of the arm Therefore, by providing a number of the spirals, an almost immediate extension of the arm is assured.

The roller 36 is slightly con'cal in form and is mounted upon a pin wliich threads through the end 37 ot' the engagement arm 38 and has a lock nut 56 threaded thereupon to clamp the pin securely in place. In Fig. l it'will be perceived that the engagement faces 57 of the spirals 34 are given a slope which extends over the'circumterential face or the roller 36 and has a tendency to maintain the roller in engagement with the spiral. Upon reaching the apex 43 of the spiral, the roller drops down upon the projection (SO and rolls against the shoulder 61, thus causing the arm 25 to he maintained in extended position until the engagement arm 38 is lifted by pulling on the cable 65 which extends over a pulley 66 mounted at the forward end of the vehicle and over a pulley (57 supported by a bracket 68 at a point upon the arm 25 opposite to the engagement arm 38. y i

As shown in thediagrammatic view of Fig. 1, the lines numbered 70, 71 and Wrapresent furrows cut by the blades 21 as the vehicle indicated diagrammatically at 73 is drawn between the rows of trees 74. and 75. The numeral 76 indicates a furrow formed by the blade 29. This furrow extends in between'the trees as indicated at 78 and thus provides a means for directing the flow of water into those spaces betweenthe trees which are ordinarily neglected. The diagrammatically shown vehicle 7 3 has the arm thereof retracted in the process of going around the tree 80. The extension of the arm is accomplished by the mechanism previously described. aisles between the rows of trees the operator may cause the blade to form such a furrow, as shown at 76, by alternately lifting and dropping the enga'gementarm 38 so as to accomplish a swinging of the arm from the normal position which it assumes :igainst the stop when the extension elements are disengaged to the extended position in which the forming of the deflected portions 81 of the furrow 76 are formed. The arm 25 is held forcibly against the stop 85 due to'the I In passing down the magma swinging moment which is imparted thereto owing to the pivot 26 being otiset inwardly from the direct line of travel of the arm 25 indicated by the arrow 86. The magnitude of this moment may working conditions by moving the point at pivot either inwardly or outwardly. I claim as my invention:

1. In a device of the class described, the

3. In a device of the class described, the

combination of: a vehicle; an arm pivoted to said vehicle; and means operating between said vehicle and said arm for swinging said arm on said pivot, said means for swinging said arm consisting of a member, axially mounted upon one of the wheels of saidvehicle, having spiral threads formed thereupon, and engaging means, secured to said arm, adapted to engage said spiral threads.

4. In a device of the class described, the combination of: a vehicle; an arm pivoted to said vehicle; and means operating between said vehicle and said arm for swinging said arm on said pivot, said means for swinging said arm consisting of a member, axially mounted upon the outside of one of the wheels of said vehicle, having spiral threads formed thereupon, which progress outwardly in a direction opposite tothe direction of forward rotation of said wheel, and engaging means secured to said arm, adapted to engage said spiral threads.

5. In a device of the class described, the combination of: a vehicle; a plow blade supporting member; and cam and follower means comprising a spiral rotated by a ground wheel for movin said member lat? erally outward from said vehicle as said vehicle moves forwardly.

In testimony whereof, I have hereunto set my hand at Los Angeles, Califhrnia, this 11th day of September, 1922.

BINGHAM T. WILSOlI.

be changed to suit 

